C#小练习09

迷南。 2022-07-15 12:27 177阅读 0赞

定义一个公司员工类，包含员工的员工号，姓名，性别，出生年月，年龄，工资金额等字段和属性，其中规定姓名不能为空，工资金额不低于当地最低工资600元，员工号从1000到5999，并给出将员工所有信息打印出来的ToString()方法。

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace CSharp_9_01
    {
        class Employee
        {
            private static int Id;
    
            public static int Id1
            {
                get
                {
                    if (Employee.Id >= 1000 && Employee.Id <= 5999)
                    {
                        return Employee.Id;
                    }
                    else
                    {
                        Console.WriteLine("员工工号应为1000到5999之间，已经初始化为1000");
                        return 1000;
                    }
                }
                set { Employee.Id = value; }
            }
            private static string Name;
    
            public static string Name1
            {
                get
                {
                    if (Employee.Name != null)
                    {
                        return Employee.Name;
                    }
                    else
                        Console.WriteLine("姓名不能为空，已将姓名初始化为小明");
                    return "小明";
                }
                set
                {
                    if (Employee.Name != null)
                    {
                        Employee.Name = value;
                    }
                    else
                    {
                        Console.WriteLine("姓名不能为空，已将姓名初始化为小明");
                        Employee.Name = "小明";
                    }
                }
            }
            private static char Sex = '男';
            private static int Year = 1997;
            private static int Month = 09;
            private static int Day = 09;
            private static int Age = 20;
            private static float Salary;
    
            public static float Salary1
            {
                get
                {
                    if (Employee.Salary >= 600)
                    {
                        return Employee.Salary;
                    }
                    else
                    {
                        Console.WriteLine("最低工资不低于600,已经初始化为600");
                        return 600;
                    }
                }
                set
                {
                    if (Employee.Salary >= 600)
                    {
                        Employee.Salary = value;
                    }
                    else
                    {
                        Console.WriteLine("最低工资不低于600,已经初始化为600");
                        Employee.Salary = 600;
                    }
                }
            }
            public override string ToString()
            {
    
                return (string.Format("员工工号为：{0}\n员工姓名为：{1}\n员工性别为：{2}\n员工出生年月日为：{3}年{4}月{5}日\n员工年龄为：{6}\n员工工资为：{7}\n", Id1, Name1, Sex, Year, Month, Day, Age, Salary1));
            }
           
            static void Main(string[] args)
            {
                Employee e = new Employee();
                Console.WriteLine(e);
               
            }
        }
    }

定义一个电视机类，具有以下特性：

1、生产厂家；

2、是否支持数字信号；

3、价格；

4、当前频道(最多有100个频道)；

一台电视机必须有以下操作功能：

1、打开电视；

2、关闭电视；

3、选台；

4、显示当前频道；

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace CSharp_9_02
    {
        class Tv
        {
            static int num = 0;
            static string factory="熊猫牌";
            static bool IssupNub=true;
            static float Price=1999;
            static int[] Channel = new int[100];
            static void OpenTv()
            {
                Console.WriteLine("输入要打开的频道数字:");
                num++;
                Channel[num] = int.Parse(Console.ReadLine());
                Console.WriteLine("正在打开电视即将打开:频道{0}……", Channel[num]);
                Console.WriteLine("打开成功！");
            }
            
            static void ChangeChannel()
            {
                Console.WriteLine("输入要切换的频道数字:");
                num++;
                Channel[num] = int.Parse(Console.ReadLine());
                Console.WriteLine("正在切换到频道{0}……", Channel[num]);
            }
            static void ShowTv()
            {
                Console.WriteLine("当前所有已打开频道列表为:");
                for (int i = 1; i <= num; i++)
                {
                    Console.WriteLine("channel:{0}",Channel[i]);
                } 
                Console.WriteLine("当前正在收看频道为:{0}", Channel[num]);
               
            }
            static void CloseTv()
            {
    
                num--;
                Console.WriteLine("正在关闭电视……");
            }
    
            static void Main(string[] args)
            {
                OpenTv();
               
                ChangeChannel();
                ShowTv();
                CloseTv();
                
            }
        }
    }

定义复数类complex，使用运算符重载实现复数相加、想减、相乘和相除的运算。

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace CSharp_9_03
    {
        public struct Complex
        {
    
            public double real;
            public double image;
            public Complex(double real, double image)
            {
                this.real = real;
                this.image = image;
    
            }
            //运算符重载+
            public static Complex operator +(Complex c1, Complex c2)
            {
                return new Complex(c1.real + c2.real, c1.image + c2.image);
            }
            //运算符重载-
            public static Complex operator -(Complex c1, Complex c2)
            {
                return new Complex(c1.real - c2.real, c1.image - c2.image);
            }
            //运算符重载* (a+bi)(c+di)=(ac-bd)-(bc+ad)i
            public static Complex operator *(Complex c1, Complex c2)
            {
                double a=c1.real * c2.real - c1.image * c2.image;
                double b= c1.image * c2.real + c1.real * c2.image;
                return new Complex(a,b);
            }
            //运算符重载/
            public static Complex operator /(Complex c1, Complex c2)
            {
                double a = (c1.real * c2.real + c1.image * c2.image) / (c2.image * c2.image + c2.real * c2.real);
                double b = (c1.image * c2.real - c1.real * c2.image) / (c2.real * c2.real + c2.image * c2.image);
                return new Complex(a, b);
            }
            public override string ToString()
            {
                if (image < 0) return (string.Format("{0}{1}i", real, image));
                return (string.Format("{0}+{1}i", real, image));
            }
    
        }
        class Program
        {
            static void Main(string[] args)
            {
                Complex num1 = new Complex(2, 3);
                Complex num2 = new Complex(3, 4);
                Console.WriteLine("复数1：{0:f2}", num1);
                Console.WriteLine("复数2：{0:f2}", num1);
                Console.WriteLine("复数相加：{0:f2}", num1 + num2);
                Console.WriteLine("复数相减：{0:f2}", num1 - num2);
                Console.WriteLine("复数相乘：{0:f2}", num1 * num2);
                Console.WriteLine("复数相除：{0:f2}", num1 / num2);
            }
        }
    }